Math Problem Statement

The present value of a sum of money is the amount that must be invested now, at a given rate of interest, to produce the desired sum at a later date. How much should be invested now (the present value) to have an amount of $10,000, 3 years from now, if the amount is invested at an interest rate of 4% per year, compounded semiannually. (Round your answer up to the next cent.) $

Solution

To calculate the present value (PV) of an amount of money, given the future value (FV), interest rate, time period, and compounding frequency, we use the following formula:

PV=FV(1+rn)ntPV = \frac{FV}{(1 + \frac{r}{n})^{nt}}

Where:

  • PVPV is the present value (what we want to find),
  • FV=10,000FV = 10,000 is the future value,
  • r=0.04r = 0.04 is the annual interest rate (4%),
  • n=2n = 2 is the number of compounding periods per year (semiannually),
  • t=3t = 3 is the number of years.

Let's calculate the present value:

PV=10,000(1+0.042)2×3PV = \frac{10,000}{(1 + \frac{0.04}{2})^{2 \times 3}}

I will now compute this value.The present value (PV) of $10,000 to be received in 3 years, at an interest rate of 4% per year compounded semiannually, is $8,879.71.

Would you like further details on this calculation, or have any questions?

Here are some related questions to consider:

  1. How does the frequency of compounding affect the present value?
  2. What would the present value be if the interest rate increased to 5%?
  3. How does continuous compounding differ from semiannual compounding in this scenario?
  4. What happens to the present value if the time period is extended to 5 years?
  5. How does inflation affect the real value of money over time?

Tip: The higher the frequency of compounding, the lower the present value will be for the same interest rate and future value.

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Math Problem Analysis

Mathematical Concepts

Present Value
Compound Interest
Exponential Growth

Formulas

PV = FV / (1 + r/n)^(nt)

Theorems

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Suitable Grade Level

Grades 10-12